Bun-hosted published updates could hang after candidate Doctor completed because the spawn broker retained an idle IPC channel. Honor optional channel reference controls while retaining live requests, native resource claims, and shutdown work.
Published openclaw@2026.9.7 updates passed on both Bun builds and a Node 24 control, including service replacement, authenticated readiness, and preserved backup bytes. The 22 focused broker cases pass on Node 24 and the prescribed Bun fork after a patch-identical rebase. The installed updater, delegated Doctor markers, schemas, and rollback contract are unchanged.
CI exception: both prebuilt UI global setups failed on inherited stale pnpm lockfile metadata before tests; independent main reproduction confirmed the cause, and main fixed it in 4b32b40150. Fail-fast cancellations remain unrun coverage. Landed through the authorized native pre-existing-failure route.
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